Hey Guys i need to know runescape's phone number, i have an account right now with over 300 mil and it is locked by Jagex. I need it back so i could sell it and pay my overdue debt thanks

You can recover your locked account by appealing to have it unlocked. Go follow the links to it:
Help on Runescape homepage > locked account recovery

This is the only way to un-lock your account. If your request was denied because of creation details try to put all the information you know (City,Country, etc) in the bottom box that allows up to 300 characters.

Anything from ISP, IP, Creation Dates, to even first friends on your friends list would work.